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GET http request

From: Dewancker, Bart via curl-library <curl-library_at_cool.haxx.se>
Date: Tue, 15 Sep 2020 08:23:37 +0000

Hi Daniel, Erik,

I have located the problem we faced with curl version 7.64 on Debian Buster and not with curl version 7.52 on Debian Stretch. Along with libcurl3, which comes with version 7.52, on Stretch we use curlpp (version 0.8.1-2), a C ++ wrapper for the libcurl. This wrapper works fine with libcurl3 but is no longer compatible with libcurl4. Since there is no curlpp version available for libcurl4, I downgraded to curl version 7.52 on Buster.

Regards

Bart

-----Oorspronkelijk bericht-----
Van: Dewancker, Bart
Verzonden: woensdag 9 september 2020 8:43
Aan: libcurl development <curl-library_at_cool.haxx.se>
CC: Erik Janssen <Erik.Janssen_at_axis.com>; Daniel Stenberg <daniel_at_haxx.se>
Onderwerp: GET http request

Hi,

Thanks for your explanations and suggestions. To be sure where the bug is, I will create a small test application with curllib and with a hard coded http request. I will keep you informed of the result.

Regards

Bart

-----Oorspronkelijk bericht-----
Van: curl-library <curl-library-bounces_at_cool.haxx.se> Namens Erik Janssen via curl-library
Verzonden: dinsdag 8 september 2020 17:18
Aan: libcurl development <curl-library_at_cool.haxx.se>
CC: Erik Janssen <Erik.Janssen_at_axis.com>; Daniel Stenberg <daniel_at_haxx.se>
Onderwerp: [External] RE: FW: GET http request

>> I have simulated with the command line and indeed see a second
>> request in which the url is unchanged compared to the first request.
>> But why are we seeing the changed url in the WireShark?

> It shouldn't change, it's a bug. But a bug we've not heard of before which makes me suspect the origin of it isn't in libcurl. I could be > wrong of course.

> If it would be in libcurl, then surely the curl command line would also do it that way?

Hi Bart,

I would check how the URL you pass to libcurl is constructed. Something quirky may be there that was no problem before but now provokes a bug given libcurl changed implementation? Maybe enable verbose curl output in your own code to hopefully get a quick hint. But inspecting the code with the failure in mind can be quick too

I think many systems in the world work by accident.. likely you happened to build on something forgiving and now that's gone. I suppose many on this list have been there too. I was :)

Erik

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Received on 2020-09-15